Hi all,
I fully understand the M&M propositions but the below graph is driving me crazy.
The proposition makes sense - the cost of equity increases linearly when the firm adds more (lower cost ) debt thus offsetting the benefit from the lower cost of debt; therefore WACC is constant. Makes logical sense. What I am having trouble with is that if say the cost of equity for the unlevered firm is 10% and the cost of debt is 5% - isn’t the WACC lowest with the firm being 100% financed with debt? And again these propositions assume no financial distress costs so debt would be held at a constant 5% no matter what your D/E ratio is. That’s why the graph above is giving me pause – how can the WACC be constant if the firm has 100% debt financing at a lower cost than the initial cost of capital to the firm with 0 debt?
I fully understand the M&M propositions but the below graph is driving me crazy.
The proposition makes sense - the cost of equity increases linearly when the firm adds more (lower cost ) debt thus offsetting the benefit from the lower cost of debt; therefore WACC is constant. Makes logical sense. What I am having trouble with is that if say the cost of equity for the unlevered firm is 10% and the cost of debt is 5% - isn’t the WACC lowest with the firm being 100% financed with debt? And again these propositions assume no financial distress costs so debt would be held at a constant 5% no matter what your D/E ratio is. That’s why the graph above is giving me pause – how can the WACC be constant if the firm has 100% debt financing at a lower cost than the initial cost of capital to the firm with 0 debt?